Method of transforming scrap-pipe into flat metal.



J. T. HORNER.

METHOD OF TRANSFORMING SCRAP PIPE INTO FLAT METAL.

APPLICATION FILED APR,7,1908.

Patented J an. 26, 1909.

INVENTOR W3 J Horn Fig.8

ATTORNEY WITNESSES cold rolled strips, etc.

. citizen of the United States, residing at Youngstown, in the county of Mahoning and I JOHN T. HORNER, OF

YOUNGSTOWN, on'ro.

METHOD OF TRANSFORMIN G SCRAP-PIPE INTO FLAT METAL.

Specification of Letters Patent.

Patented Jan. 26, 1909.

Application filed April 7, 1908. Serial No. 425,632.

To all whom it may concern:

Be it known that I, JOHN T. HORNER, a

State of Ohio, have invented certain new and useful Improvements in Methods of Trans forming Scrap-Pipe into Flat Metal; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention is an improvement in the art of metal working, and it consists in a method designed to utilize scrap pipe and tubes for advanced stages of manufacture not hitherto practiced in reclaiming metal of this description, which I treat in a manner that enables me to produce from one length orsection of such scrap, flat metal articles in pairs of duplicate form and dimensions.

Scrap pipe and tubes are of less value, as now used, than most varieties of waste metal for the reason, that it has to be reduced into compact form preparatory to further treatment, an ex ense not added to the majority of scrap. I? to the present time no practical met od ot her than melting, piling and busheling has been devised for converting into merchantable products the thousands of ltons of this form of metal thrown yearly upon the market, which for my purpose is in a state of partial manufacture, particularly iron and steel pipe; much of which is produced at the pi e. mills through defective welding as well as the many tons which come from remodeled buildings.

It transpires that iron and steel pipe and tubes are made from a quality of metal well adapted to a great variety of purposes, such as the manufacture of sheets, tin plate, builders hardware and hot and cold rolled strips, which are made into an endless number of comparatively small articles.

In practicing my invention the collected pipe is assorted into uniform sizes; the diameter of which indicates the standard thickness of its walls; the larger sizes with thicker walls are preferably utilized in the produc tion of sheets and tin plate, while the smaller diameters may be appro riated to hot and 'l he first step taken after assorting the pipe is to superpose two opposite walls thereof by flattening them, which is preferably done with the lengths or se'ctions in a heated state by passing them between rolls, although the same result may be obtained.by hammering, or squeezing. The treatment after this 0 eration depends upon the purpose for 'whic the superposed walls are intended. For two duplicate pieces of flat metal each having a thickness equal to one of the superposed walls of a length of pipe, no operation is required beyond superposing, other than the severance of both its edges. If the superposed walls re uire to be reduced forthinner material than t eir original thickness, they may, at the same heat they were superposed, or at a subsequent heating, be passed betweenrolls running in water; the use of watered rolls prevents sticking of the contacted internal faces of the walls when rolled below a welding heat. After such reduction both edges of the superposed walls are severed, whereby two strips of equal dimensions are produced. Washers, spoon blanks, kettle ears and an endless va riety of articles may be cheaply and expeditiously punched in duplicate from the two superposed walls of scrap pipe by the use of punches having automatic feeding devices attached. a

When plates, such as are required for use in the manufacture of sheets, tm plate, etc., are to be made, lengths of the larger sizes of pipe, after having their walls superposed, are cut into sections of desired length; one edge of each section is preferably sheared and after having been heated below a welding temperature, they are passed at right angles to their length between rolls running in water until reduced to some required thickness which is double that of one of the two duplicate resultant plates produced by severing the remaining connectlng edge.

For a better understanding of my invention and its use, companying drawings, in which,

Figure 1' represents a length, or section of scrap pipe in its original shape and condition; a defect1ve weld is shown at a. Fi 2 illustrates the pipe of Fig. 1 between attening rolls and in its first partially advanced stage of utilization; a portion of the walls thereof having been superposed. Fig. 3 shows the pipe of ig. 1 with its walls superposed. Fig. 4 shows two strips derived from the superreference is had to the action of which, washers have een punched 1n a: indicates the plane of duplicate pairs.

er and lower supercleavage between the up posed walls. Fig. 7 is a ength of scrap pi e of large diameter in plan view after the wa ls thereof have been superposed and one edge cut off; the lateral dotted lines indicate the length of sections to be sheared therefrom;

* the arrow shows the-direction in which each section is to be rolled. Fig. 8 is a side elevation of one of the sections of Fig. 7 after one of its edges has been severed and the superosed walls thereof reduced and elongated between rolls running in water; the connecting edge is to be cut on line 2, z, to produce two duplicate plates therefrom.

Having described and illustrated my invention in a comprehensive manner, I claim:-

1. The herein described method of transforming a length of scrap pipe into duplicate flat pieces, which consists 1n superposing two opposite walls thereof by flattening them, and finally severing the folded edges of the flattened structure.

2. The method herein described of transforming a length of scrap pipe into duplicate flat pieces, which consists 1n superposin two opposite walls thereof by flattening t em, and finally cutting such pieces from the flattened structure betweenits folded edges.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN T. HORNER.

Witnesses:

H. A. ERNST, T. V. ALLrs. 

